List of Standards from NACE
NACE Pipeline Standards 
 Standard  Title  Description  Latest Edition or 
Expected 
Publication Date 
NACE SP0106-2006  Internal Corrosion Control in 
Pipelines 
This standard describes procedures and practices for 
achieving effective control of internal corrosion in steel 
pipe and piping systems in crude oil, refined products, 
and gas service.  The major purpose of these corrosion 
control practices is to eliminate contamination of 
commodity by corrosion product, thinning of pipe wall, 
pitting, hydrogen blistering, and stress corrosion 
cracking. 
Published in 2006 
NACE SP0206-2006  Internal Corrosion Direct 
Assessment Methodology for 
Pipelines Carrying Normally Dry 
Natural Gas (DG-ICDA) 
Internal corrosion direct assessment methodology 
(ICDA) for gas transmission systems is described in 
terms of a four-step process that is analogous to the 
external corrosion direct assessment (ECDA) approach.  
The basis of ICDA is that detailed examination of 
locations along a pipeline where an electrolyte such as 
water would first accumulate provides information about 
the remaining length of pipe. 
Published in 2006 
NACE SP0204-2008 
(formerly RP0204) 
Stress Corrosion Cracking (SCC) 
Direct Assessment Methodology 
Stress corrosion cracking direct assessment (SCCDA) is 
a structured process that is intended to improve safety 
by assessing and reducing the impact of external SCC 
on pipeline integrity.  This standard addresses the 
situation in which a pipeline company has identified a 
portion of its pipeline as an area of interest with respect 
to SCC based on its risk assessment and has decided 
that direct assessment is an appropriate approach for 
integrity assessment. This standard provides guidance 
for selecting dig sites within an area of interest and for 
inspecting the pipe and collecting data during the dig. 
Reaffirmed in 2008 
NACE Standard TM0106-
2006 
Detection, Testing, and Evaluation 
of Microbially Influenced Corrosion 
(MIC) on External Surfaces of 
Buried Pipelines 
This standard addresses microbiologically induced 
corrosion (MIC) determination and remediation.  MIC 
has been actively studied in recent years because of its 
potentially deleterious effect on important underground 
structures, such as pipelines.  Sulfate-reducing bacteria 
(SRB), the most well-known bacteria associated with 
Published in 2006 
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pipeline corrosion, live in communities, and the reaction 
products of one may act as a nutrient for another. This 
document emphasizes the importance of testing for 
more than one type of bacteria. 
NACE Standard RP0102-
2002 
In-Line Inspection of Pipelines  In-line inspection, a form of instrumented inspection, is 
one tool used in the process of pipeline integrity 
management.  This standard outlines a process of 
related activities that a pipeline operator can use to plan, 
organize, and execute an ILI project.  Guidelines 
pertaining to ILI data management and data analysis are 
included. 
Being revised 
NACE SP0502-2008 
(formerly RP0502) 
Incorporated by reference in 
pipeline safety regulations 
Pipeline External Corrosion Direct 
Assessment Methodology 
External corrosion direct assessment (ECDA) is a 
structured process that is intended to improve safety by 
assessing and reducing the impact of external corrosion 
on pipeline integrity.  By identifying and addressing 
corrosion activity, repairing corrosion defects, and 
remediating the cause, ECDA proactively seeks to 
prevent external corrosion defects from growing to a 
size that is large enough to impact structural integrity. 
Reaffirmed in 2008; 
also being revised. 
NACE SP0169-2007 
(formerly RP0169) 
Parts incorporated in pipeline 
safety regulations 
Control of External Corrosion on 
Underground or Submerged 
Metallic Piping Systems 
The cathodic protection criteria in this standard for 
achieving effective control of external corrosion on 
buried or submerged metallic piping systems are also 
applicable to other buried metallic structures.  The 
standard included information on determining the need 
for corrosion control; piping system design; coatings; 
cathodic protection criteria and design; installation of 
cathodic protection systems; and control of interference 
currents.  The cost of corrosion control is also 
addressed in the appendices. 
Reaffirmed in 2007; 
also being revised. 
NACE Standard TM0497-
2002 
Complements SP0169 
(formerly RP0169) 
Measurement Techniques Related 
to Criteria for Cathodic Protection 
on Underground or Submerged 
Metallic Piping Systems 
This standard provides testing procedures to comply 
with the requirements of a criterion at a test site on a 
buried or submerged steel, cast iron, copper, or 
aluminum pipeline.  Contains instrumentation and 
general measurement guidelines, methods for voltage 
drop considerations when making pipe-to-electrolyte 
potential measurements, and provides guidance to 
prevent incorrect data from being collected and used. 
Reaffirmation in 
2008 
NACE SP0208-2008  Internal Corrosion Direct 
Assessment Methodology for Liquid 
Petroleum Pipelines 
This standard describes the basis of the liquid petroleum 
internal corrosion direct assessment (LP-ICDA) method 
and its four steps:  (1) pre-assessment, (2) indirect 
Published in 2008 
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assessment, (3) direct examination, and (4) post 
assessment. With the LP-ICDA approach, assessments 
can be performed on pipe segments for which 
alternative methods may not be practical. 
SP0207-2007  Close-Interval Potential Surveys on 
Buried or Submerged Metallic 
Pipelines 
This standard addresses one of the survey techniques for 
the evaluation of underground pipeline coating condition 
that can be used in external corrosion direct assessment. 
Published in 2007 
SP0200-2008 (formerly 
RP0200) 
Steel-Cased Pipeline Practices  Details acceptable practices for the design, fabrication, 
installation, and maintenance of steel-cased metallic 
pipelines. It is intended for use by personnel in the 
pipeline industry. 
Reaffirmed in 2008; 
being revised 
Draft from Task Group 369  Pipelines: Aboveground Techniques 
for Evaluating the Corrosiveness of 
External Environments 
To develop a standard for aboveground techniques used 
to identify areas on a pipeline at risk for eternal corrosion 
based on the corrosiveness of the environment. The 
standard would include empirical methods such as SPR 
probe surveys, soil chemistry, topography and soil 
characterization, hot-spot surveys on unprotected 
structures, and other means. 
2009 or 2010 
Draft from Task Group 370  Pipeline Corrosion Management  To develop a process-oriented standard on managing 
corrosion of pipelines. This would reference existing 
standards, life-cycle methodologies, maintenance 
optimization, decision analysis, risk assessment, etc. 
2009 
Draft from Task Group 377  Pipeline External Corrosion 
Confirmatory Direct Assessment 
Prepare a standard that will provide guidelines on how to 
implement the CDA methodology as part of the pipeline 
integrity reassessment process.  
2009 
NACE Publication 35108  Report on the 100 mV Cathodic 
Polarization Criterion 
This report discusses the theoretical basis for the 100 mV 
cathodic polarization criterion, the effects of other factors 
such as temperature, mill scale, moisture, and anaerobic 
bacteria, measurement of the polarization, and the 
applicability of the criterion in situations such as areas 
susceptibility to stress corrosion cracking, mixed-metal 
systems, and areas susceptible to stray currents. It also 
includes the results of an industry questionnaire on the 
use of the 100 mV polarization criterion and opinions on 
its effectiveness. 
Published in 2008 
Draft from Task Group 305 
Draft developed from report 
based on research under 
PHMSA grant 
Internal Corrosion Direct 
Assessment for Wet Gas Pipelines  
This standard will address the gap in standards for 
pipeline integrity for high-consequence areas. There are 
differences between wet gas and dry gas systems 
2009  
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